Index: head/graphics/png/Makefile
===================================================================
--- head/graphics/png/Makefile	(revision 406964)
+++ head/graphics/png/Makefile	(revision 406965)
@@ -1,43 +1,43 @@
 # Created by: ache
 # $FreeBSD$
 
 PORTNAME=	png
-PORTVERSION=	1.6.20
+PORTVERSION=	1.6.21
 CATEGORIES=	graphics
 MASTER_SITES=	SF/lib${PORTNAME}/lib${PORTNAME}16/${PORTVERSION} \
 		ftp://ftp.simplesystems.org/pub/lib${PORTNAME}/${PORTNAME}/src/lib${PORTNAME}16/
 PATCH_SITES=	SF/apng/lib${PORTNAME}/lib${PORTNAME}16/
 DISTNAME=	lib${PORTNAME}-${PORTVERSION}
 
 MAINTAINER=	portmgr@FreeBSD.org
 COMMENT=	Library for manipulating PNG images
 
 USES=		cpe libtool tar:xz
 CPE_PRODUCT=	libpng
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--with-pkgconfigdir=${PREFIX}/libdata/pkgconfig
 INSTALL_TARGET=	install-strip
 USE_LDCONFIG=	yes
 
 OPTIONS_DEFINE=APNG PNGTEST
 OPTIONS_DEFAULT=APNG PNGTEST
 APNG_DESC=Enable Animated PNG support
 PNGTEST_DESC=Enable Regression Test (recommended)
 
 .include <bsd.port.options.mk>
 
 .if ${PORT_OPTIONS:MAPNG} || make(makesum)
 PATCHFILES=	${DISTNAME}-apng.patch.gz
 .endif
 
 # Do not fail until https://sourceforge.net/p/libpng/bugs/243/ is fixed
 .if ${PORT_OPTIONS:MPNGTEST}
 post-build:
 	(cd ${BUILD_WRKSRC}; if ! ${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_FLAGS} ${MAKEFILE} ${_MAKE_JOBS} ${MAKE_ARGS} test; then \
 	if [ -f ${WRKSRC}/test-suite.log ]; then \
 	${CAT} ${WRKSRC}/test-suite.log ; \
 	fi; \
 	fi)
 .endif
 
 .include <bsd.port.mk>
Index: head/graphics/png/distinfo
===================================================================
--- head/graphics/png/distinfo	(revision 406964)
+++ head/graphics/png/distinfo	(revision 406965)
@@ -1,4 +1,4 @@
-SHA256 (libpng-1.6.20.tar.xz) = 55c5959e9f3484d96141a3226c53bc9da42a4845e70879d3e1d6e94833d1918b
-SIZE (libpng-1.6.20.tar.xz) = 942672
-SHA256 (libpng-1.6.20-apng.patch.gz) = ed7bc9d03bc7390c477623e1abff42977395c75ed3e69e8308ea25bc3871774d
-SIZE (libpng-1.6.20-apng.patch.gz) = 10304
+SHA256 (libpng-1.6.21.tar.xz) = 6c8f1849eb9264219bf5d703601e5abe92a58651ecae927a03d1a1aa15ee2083
+SIZE (libpng-1.6.21.tar.xz) = 943980
+SHA256 (libpng-1.6.21-apng.patch.gz) = e3987bb341dc0e936f3a28fc555d5a46577f629c72a42287a1f3cbb204138d1a
+SIZE (libpng-1.6.21-apng.patch.gz) = 10318
Index: head/graphics/png/pkg-plist
===================================================================
--- head/graphics/png/pkg-plist	(revision 406964)
+++ head/graphics/png/pkg-plist	(revision 406965)
@@ -1,21 +1,21 @@
 bin/libpng-config
 bin/libpng16-config
 bin/png-fix-itxt
 bin/pngfix
 include/libpng16/png.h
 include/libpng16/pngconf.h
 include/libpng16/pnglibconf.h
 include/png.h
 include/pngconf.h
 include/pnglibconf.h
 lib/libpng.a
 lib/libpng.so
 lib/libpng16.a
 lib/libpng16.so
 lib/libpng16.so.16
-lib/libpng16.so.16.20.0
+lib/libpng16.so.16.21.0
 libdata/pkgconfig/libpng.pc
 libdata/pkgconfig/libpng16.pc
 man/man3/libpng.3.gz
 man/man3/libpngpf.3.gz
 man/man5/png.5.gz